Table 2.
Analyzed and calculated nutrient values in experimental diets.
| Period | Grower | Finisher | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Digestible P Level 1 | P− | P+ | P− | P+ | ||||||||
| Ca:Digestible P Ratio | 2.2:1 | 2.5:1 | 2.8:1 | 2.2:1 | 2.5:1 | 2.8:1 | 2.2:1 | 2.5:1 | 2.8:1 | 2.2:1 | 2.5:1 | 2.8:1 |
| Dry matter (g/kg) 2 | 896 | 899 | 898 | 887 | 891 | 888 | 894 | 892 | 893 | 884 | 889 | 886 |
| Dig. energy (MJ/kg) 3 | 13.0 | 13.1 | 13.2 | 13.1 | 13.1 | 13.1 | 13.0 | 12.9 | 13.3 | 12.9 | 12.9 | 12.8 |
| Crude protein (g/kg) 2 | 164 | 165 | 165 | 156 | 160 | 158 | 127 | 127 | 128 | 130 | 129 | 128 |
| Ash (g/kg) 2 | 37 | 39 | 40 | 42 | 44 | 47 | 34 | 35 | 37 | 40 | 40 | 43 |
| Dig. lysine (g/kg) 3 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 |
| Dig. methionine (g/kg) 3 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 |
| Dig. threonine (g/kg) 3 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 |
| Ca (g/kg) 2 | 5.3 | 5.9 | 6.5 | 6.6 | 7.2 | 8.3 | 3.8 | 4.4 | 4.8 | 5.1 | 5.7 | 6.3 |
| P (g/kg) 2 | 3.9 | 3.7 | 3.9 | 4.4 | 4.3 | 4.4 | 2.9 | 3.0 | 2.9 | 4.1 | 3.9 | 4.3 |
| Phytic P (g/kg) 2 | 2.1 | 2.0 | 2.0 | 1.8 | 2.0 | 2.1 | 2.6 | 2.4 | 2.5 | 2.3 | 2.4 | 2.2 |
| Non phytic P (g/kg) 3 | 1.8 | 1.7 | 1.9 | 2.6 | 2.3 | 2.3 | 0.4 | 0.6 | 0.4 | 1.8 | 1.4 | 2.1 |
| Phytase activity (U/kg) 2 | 746 | 722 | 704 | 794 | 775 | 850 | 919 | 895 | 877 | 993 | 991 | 837 |
| Digestible P (g/kg) 3 | 2.5 | 2.5 | 2.5 | 3.0 | 3.0 | 3.0 | 1.7 | 1.7 | 1.7 | 2.4 | 2.4 | 2.4 |
| Ca:dP 3 | 2.1 | 2.4 | 2.6 | 2.2 | 2.5 | 2.8 | 2.2 | 2.5 | 2.8 | 2.1 | 2.4 | 2.6 |
| Zn (mg/kg) 2 | 67 | 65 | 69 | 69 | 65 | 69 | 67 | 70 | 67 | 75 | 70 | 77 |
1 P– = Formulated to contain 2.5 and 1.7 g digestible P/kg grower and finisher diets, respectively. P+ = Formulated to contain 3.0 and 2.4 g digestible P/kg grower and finisher diets, respectively. 2 Analyzed as described under chapter Material and Methods. 3 Calculated.